Heating system.



0. A. ROSS.

HEATING SYSTEM.

APPLICATION FILED APB. 17, 1912,

1,061,635. Patented May 13, 1913.

d supply.

To a source af fluid supply.

X? Arron/ver OSCAR A. ROSS, OF ROCHESTER, NEW YORK.

HEATING SYSTEM.

Specification of Letters Patent.

Application inea Aprh 17, 1912. sum1 No. 591,335.

To all whom t may concern f Be it known that I, OsoAR A. Ross, a citizen of the UnitedStates, and resident of the city of Rochester, in the county 4of Monroe and State of New York, have invented a new and useful Heating System, of which the following is a specification.

rl`his invention relates to a heating system.

The primary object of this invention is to produce a system, whereby a fixed temperature may be automatically maintained, in a closed space, for any length of time, without any attention to the apparatus immediately concerned.

Other advantages of applicants system will appearas the description of the same progresses.

In the single figure accompanying this specication, applicant has shown, schematically, a preferred form of his invention, to enable a better understanding of the same to be had.

Numeral 1, rdesignates a space, which it is desired to maintain at a constant tempera ture. In order to heat the air contained in the space, the radiator 2 is used, one end of which is connected,by means of pipe 3, with one end of a coil of pipe 4, the other end of the coil being connected through a valve actuator ywith the exit end of a pump 6. The suction end of the pump is connected, by means of pipe 7, with the other end of the radiator 2, throughthe ordinary valve 8.

'llhe radiator 2, pipe 3, coil 4, actuator 5, pump 6 and pipe 7 are completely4 filled with a fluid, preferably water, which is heated by the fluid burner 9, the flame from which impinges upon the'outer surface of the pipe of coil 4. If found necessary or desirable the pipe '3 may be connected to the well known expansion tank 33, by pipe 34, and the tank may be connected by means of pipe 35 to a source of fluid supply. By such means the systemA may be kept completelyfilled with fluid at all times with no danger from expansion of the fluid by heat, as the excess volume may pass into the expansion tank which is kept filled only to the level of line 36.

The burner 9 is supplied with a combustible fluid by means of pipe 10, connected through valve 11 with a pipe 13, which is connected to a source of combustible fluid.

The pipe 14 connects wit-h'pipe 13 at one end, and ends with a small bore, in proiiim-v ity' toburner 9 atthe other end. 'The com,-

bustible fluid issuing from the end of pipe 14 is lighted and allowed to burn continually. The valve 11 has a stem 12, 'to which one end of a retractilespring 15 is attached, the other end of the spring being attached to a fixed object. To the upper end of-the stem 12, a member 16 is attached, which is pivoted at 17 and extends within the actuator 5, and has the end within the actuator Patented May 13, v1913.

so formed and positioned, that a flowof fluid through the actuator causes the member 16 to assume the position shown in the vfigure. If the flow of fluid ceases, the spring 15 causes member 16 to swing to a vertical position, and causes stem 12 to be drawn to the left of the position as shown in the figure, thus closing valve 11 and cutting off the supply of combustible fluid to the burner 9. A

rPhe pump 6 is directly connected, by means of shaft 18,A with electric motor 19 and fluid motor 20. The circuit forl the electric motor is completed by contact point 21 and arm 22 contacting. Fluid pressure is admitted to fluid motor 20 .from pipe 23 through valve 24, which is shown in the open position.

Arm 22 has a retractile spring 25 connected thereto, which if unrestrained would cause yalve 24 to close and arm 22 and contact 21 to break contact. The spring is restrained, when solenoid 26 is energized, for

then the core 27 is pulled to the right asshown in the figure and keeps valve 24 open and Contact 21 and arm 22 in Contact.

Solenoid26 is energized from battery 28, through thermostat 29. The thermostat 29 may be of anyusual or preferred form, but is here shown as a brass strip 430 riveted to an iron strip 31, so that when the temperature ofthe space 1 in which radiator 2 and the thermostat is placed is increased be yond a predetermined value the strip yE30 breaks contact with the adjustable screw 32, and so breaks the circuit of solenoid 26. If at any time it is desired to change the predetermined temperature it is done by adjusting screw 32. v

Theoperation of the system is as follows: I

With all of the parts as shown in the ligure, thermostat-29 completes the circuit of solenoid 26, which holds core 27 in the extreme right hand position, thus allowing luid' pressure to act upon'motor 2O and thus closing the circuit of motor 19, which are caused to revolve and -rotate the mechanism of part. The flow of the fluid causes pivoted member 16 to remain in the position as."

shown, thus opening valve'11 and allowing combustible fluid to flowto burner 9, which upon burning heats coil 4 and the fluid circulating therethrough. .The heated cfluid passing through radiator 2 causes the temperature of space 1 to rise.. When the temperature'of space 1 reaches a predetermined limitthermostat 29 breaks the circuit through solenoid 426, thereby allowing core 27 and arm 2 2 under the influence of spring 25 to move to the left, thusbreaking the circuit through the electric motor and closing the valve 24. As soon asthe motors stop, the pump ceases to force fluid through actuator 5, consequently the lower end of pivoted member 16 together with stem 12 lare drawn to -the left by the action of spring 15, thus closing valve 11 and cutting olf the supply of combustible fluid to the burner 9.

The system remains' in the last described condition until the temperature of space 1 falls so low thatbrass strip touches adjustable screw 32, whereuponv the circuit through the electric motor is again closed,

the fluid motor` is supplied with fluid presn sureand the pump operates to 'cause a circulation of fluid in the system, which causes pivoted member 16to move stem 12 against the resistance of spring 15,'and opens valve 11, which allows combustible fluid to ow to the burner 9, and be lighted by the lighted fluid issuing\from pipe 14. The system is then in the condition as vshown in the ligure,

Although applicant has illustrated and -idescribed two motors; one, an electric motor; the other, a fluid motor, itis to be understood that one onlyx would be used at one-time. I.. u Applicants system. is perfectly automatic,

reliable and free from complicated apparatus, which is likely to get out of order, and consequently no skilled attendant is needed to operate it; in fact, no attendant at all is needed, for once started, it should operate indenitely without attention. Appli.- cants system therefore possesses great utility. rl`he lsystem is also economical, for energy is used only' when the temperature of space 1 fallsbelow a' predetermined minimum temperature, at all other times there is no expense to the system except the insignificant cost of the combustible fluid needed to supply pipe 14.

Having thus described the principle of my inventionl vand explained the construction and operation of one particular physical embodiment thereof, what I claim as new and desire to secure by Letters Patent, is: y

ln an automatic heating system, a thermo- `stat in the space to be heated and governed" by the .temperature thereof, la motor gov- Huid.`

,v QSCAR A. ROSS. Witnesses: u ,LILILIAN L. PHILLIPS, MYRTLE A. HEATH.

erned by said thermostat, a pump actuated radiator,l the fluid of said circuit being 

